hijackloader | c980444331ca7db229839e93c88dded4001943f0b71ec00d41f6ad3e76f5afb9

General

Target

CAAAAFBKFI.exe
Size

2.7MB
MD5

62f9ab4067af92388be75b2cf9956e20
SHA1

3f9040c33118341edb168689ad852f1cddd0309e
SHA256

c980444331ca7db229839e93c88dded4001943f0b71ec00d41f6ad3e76f5afb9
SHA512

47d881354cb8a99c54d8d92aea277d3c3d20508659378628aa9e606509e9ce8697214f0c00636d3f580d20cb6dab6b73e565cfbbd5dfb73201a7d43a9c7a4361
SSDEEP

49152:NamswIRUiME1+bu5kfl9KYhm8vKy/VLmtrShqFatM7XZhak:YmQ288iy9LxhQD7XZha

Score

10^/10

Malware Config

Signatures

Detects HijackLoader (aka IDAT Loader) 2 IoCs

resource	yara_rule
behavioral2/memory/2272-0-0x0000000000400000-0x00000000006B1000-memory.dmp	family_hijackloader
behavioral2/memory/2272-12-0x0000000000400000-0x00000000006B1000-memory.dmp	family_hijackloader

HijackLoader
HijackLoader is a multistage loader first seen in 2023.
loader hijackloader
Hijackloader family
hijackloader

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 3736	2272	CAAAAFBKFI.exe	86
PID 3736 set thread context of 4888	3736	cmd.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3552	4888	WerFault.exe	92

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CAAAAFBKFI.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2272	CAAAAFBKFI.exe
2272	CAAAAFBKFI.exe
3736	cmd.exe
3736	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2272	CAAAAFBKFI.exe
3736	cmd.exe
3736	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 3736	2272	CAAAAFBKFI.exe	86
PID 2272 wrote to memory of 3736	2272	CAAAAFBKFI.exe	86
PID 2272 wrote to memory of 3736	2272	CAAAAFBKFI.exe	86
PID 2272 wrote to memory of 3736	2272	CAAAAFBKFI.exe	86
PID 3736 wrote to memory of 4888	3736	cmd.exe	92
PID 3736 wrote to memory of 4888	3736	cmd.exe	92
PID 3736 wrote to memory of 4888	3736	cmd.exe	92
PID 3736 wrote to memory of 4888	3736	cmd.exe	92
PID 3736 wrote to memory of 4888	3736	cmd.exe	92
PID 3736 wrote to memory of 4888	3736	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\CAAAAFBKFI.exe
"C:\Users\Admin\AppData\Local\Temp\CAAAAFBKFI.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3736
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 960
      4⤵
      Program crash
      PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4888 -ip 4888
1⤵
PID:4460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\afe13bd3

Filesize
710KB

MD5
d4744f5ec3e5058260d817196f000c23

SHA1
7bfcc60c847ae3c63cb001085bca707c3876f8a5

SHA256
fac30dc05dd851772e82005f850f515ec52369c6e8a90c9252f9fa99bee2296e

SHA512
4be00dea4aeceecc8052b73fb08117d16fe3aa8f1ddec060af4c36af97b938e4eef2605e8a44539668d98e913f1e23ffe0cb37fa1d2a9408cd152000491a1f3e

Download Submit
memory/2272-12-0x0000000000400000-0x00000000006B1000-memory.dmp

Filesize
2.7MB

Download
memory/2272-13-0x0000000073B70000-0x0000000073CEB000-memory.dmp

Filesize
1.5MB

Download
memory/2272-14-0x00007FFCE9FB0000-0x00007FFCEA1A5000-memory.dmp

Filesize
2.0MB

Download
memory/2272-17-0x0000000073B70000-0x0000000073CEB000-memory.dmp

Filesize
1.5MB

Download
memory/2272-0-0x0000000000400000-0x00000000006B1000-memory.dmp

Filesize
2.7MB

Download
memory/3736-24-0x0000000073B70000-0x0000000073CEB000-memory.dmp

Filesize
1.5MB

Download
memory/3736-22-0x00007FFCE9FB0000-0x00007FFCEA1A5000-memory.dmp

Filesize
2.0MB

Download
memory/3736-19-0x0000000073B71000-0x0000000073B7F000-memory.dmp

Filesize
56KB

Download
memory/3736-25-0x0000000073B70000-0x0000000073CEB000-memory.dmp

Filesize
1.5MB

Download
memory/3736-27-0x0000000073B70000-0x0000000073CEB000-memory.dmp

Filesize
1.5MB

Download
memory/3736-36-0x0000000073B71000-0x0000000073B7F000-memory.dmp

Filesize
56KB

Download
memory/4888-28-0x0000000072710000-0x0000000073964000-memory.dmp

Filesize
18.3MB

Download
memory/4888-31-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/4888-32-0x0000000000820000-0x000000000082E000-memory.dmp

Filesize
56KB

Download
memory/4888-33-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/4888-34-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/4888-35-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/4888-37-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing